6473749 has 2 divisors, whose sum is σ = 6473750. Its totient is φ = 6473748.

The previous prime is 6473743. The next prime is 6473801. The reversal of 6473749 is 9473746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 47524 = 2535^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 6473749 - 2²¹ = 4376597 is a prime.

It is a super-3 number, since 3×6473749³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6473743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236874 + 3236875.

It is an arithmetic number, because the mean of its divisors is an integer number (3236875).

Almost surely, 2^6473749 is an apocalyptic number.

It is an amenable number.

6473749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6473749 is an equidigital number, since it uses as much as digits as its factorization.

6473749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 6473749 is about 2544.3563036650. The cubic root of 6473749 is about 186.3739825814.

The spelling of 6473749 in words is "six million, four hundred seventy-three thousand, seven hundred forty-nine".